Re: [google-appengine] ReadConsistency and entity load performance?

2011-08-06 Thread Robert Kluin
Hi Peter, There is a very big difference. Strong consistency will ensure you are seeing the most recent version of the data in that entity group; if a strongly consistent request hits a server that does not have the most recent version of an entity group's data it will cause that server to 'catc

[google-appengine] ReadConsistency and entity load performance?

2011-07-06 Thread Peter Murray
Greetings folks, It seems that entities load almost ten times faster when using ReadPolicy.Consistency.EVENTUAL in the DatastoreServiceConfig. In my little test, using the default of STRONG, loading 100 Entities by key (e.g. ds.get(keys) ) takes around 500ms (plus or minus), but with EVENTUAL